After the most recent update, Firefox is very slow to start. Firefox itself runs fine, but it takes about 8 seconds to start, whether I run it from the terminal or from a shortcut on the desktop. Furthermore, Firefox also exhibits this slow start behavior if I click links from other programs, such …

Found it, relevant Arch forum thread Firefox suddenly painfully slow to load / Newbie Corner / Arch Linux Forums I have removed xdg-desktop-portal-gnome and suddenly everything back to normal. If someone has an idea why this could be happening, I’m curious to know

Firefox very slow to start after recent update

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cscs 6 June 2023 20:11 5

Its also been mentioned in every update announcement here for the last 29 days.

Ex: